PARIS (AP) — The latest news from the U.N. climate conference that gets underway in Paris on Monday. All times local:

8:20 a.m.

U.N. Secretary General Ban Ki-moon and French President Francois Hollande are greeting heads of state and government from around the world for high-stakes talks aimed at fighting global warming.

One by one, some 150 leaders are arriving at the conference center near the Le Bourget airfield just north of Paris. Ban, Hollande, the head of the U.N. climate change agency Christina Figueres, and French Environment Minister Segolene Royal are standing in front of the conference center to greet them.

Afterwards, each leader will give a speech laying out their countries' efforts to reduce man-made emissions and cope with climate change.

The event opening Monday lasts through Dec. 11 and is under extra-security after Nov. 13 extremist attacks in Paris.

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7:30 a.m.

Wide Paris-area highways usually packed with commuters are cordoned off to clear the way for President Barack Obama and 150 other world leaders joining critical talks about fighting global warming.

Riot police vans and plainclothes officers are stationed around the capital and the northern suburb of Le Bourget, where the U.N.-led climate conference is being held Nov. 30-Dec. 11.

The security measures are especially tight after Islamic extremists killed 130 people two weeks ago in Paris and targeted the national stadium Stade de France, near the climate conference venue.

U.N. Secretary-General Ban Ki-moon and French President Francois Hollande will greet each of the leaders Monday morning then each will give a speech about what their countries are doing to reduce emissions and slow climate change.

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12:55 a.m.

President Barack Obama has paid a late-night tribute to those killed in the terrorist attacks in Paris two weeks ago, shortly after his arrival for climate talks in the French capital.

The American president's motorcade went straight from Orly Airport on Sunday to the famed French concert hall, the Bataclan, site of the worst bloodshed when the terrorists struck on Nov. 13.

French President Francois Hollande and the mayor of Paris, Anne Hidalgo, joined Obama. Each placed a single flower at a makeshift memorial and Obama bowed his head in silence.

Some 130 people died in the deadliest attack on French soil in more than a half-century. The Islamic State group claimed responsibility.

Obama flew to Paris for the opening two days of an international conference on combatting climate change.

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10:45 p.m.

Polish Prime Minister Beata Szydlo says that the EU's position for climate talks in Paris is acceptable to coal-using Poland and she expects the conference will end in a deal.

Szydlo spoke Sunday in Brussels where she attended an EU-Turkey summit that focused on a response to the influx of migrants from war-torn Syria. On Monday, she will attend the opening of the two-week Paris climate talks.

"The position is acceptable to Poland," she said. "We can expect that an agreement will be signed. I would like us to reach an agreement in Paris."

But she hinted she will be bargaining hard, because the deal "must not hurt Poland's economy," which largely depends on black and brown coal.

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8:30 p.m.

The Eiffel Tower is lit up in green and environmentally conscious messages are being projected on the monument as Paris prepares to host critical talks on reducing global warming.

U.N. Secretary-General Ban Ki-moon participated in a ceremony beneath the tower Sunday along with actress Marion Cotillard and artist Naziha Mestaoui to light up the tower like an enormous metallic tree.

Ban will launch two weeks of climate talks starting Monday aiming at a long-term global agreement for all countries to reduce man-made emissions that heat the planet.

In addition to the green lights, artists designed messages being projected on the tower about renewable energy and protecting forests. The tower will remain lit like a tree through Thursday.

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8:15 p.m.

France's interior minister says 174 protesters are in detention facing possible charges after clashing with riot police on the eve of a critical climate conference.

Bernard Cazeneuve said Sunday a total of 208 people were arrested after the clashes, but some were later released.

French President Francois Hollande said the violence was "scandalous" both because the clashes were caused by "disruptive elements" that have nothing to do with environmental defenders and because they occurred at Place de la Republique, which has been a memorial square for the 130 victims of the Nov. 13 Paris attacks.

Police said they used tear gas to stop the advance of groups of several hundred people throwing projectiles that included memorial candles.

"These individuals have no place and that's why everything will be done to move them aside," Hollande said from Brussels.

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6:25 p.m.

President Barack Obama says American leadership is helping the global fight against climate change.

As he left for the climate conference in Paris Sunday, Obama wrote a Facebook that the U.S. has shown it's possible to make environmental gains while creating jobs and expanding the economy.

Obama will try to reassure world leaders in Paris that the U.S. can deliver on its own commitments.

He says the goal in Paris is a long-term framework for more global reductions, with each nation setting targets that other countries can verify.

He says leaders will try to support "the most vulnerable countries" in expanding clean energy and "adapting to the effects of climate changes that we can no longer avoid."